Well, I am not one of the veteran experts on this board, but I understand some, and am pretty tuned in to eBay. Here are my opinions on your position:
You may think $1500 to start is a reasonable price, but there's an Orion 6 with a high bid at just over $1K. There's also another Epic 6 with a $1000 But-it-Now. Yours may be better, but your ad leaves room for doubt.
In particular, you can't describe damage to your guitar bad enough to have needed repair and not have a good picture that shows the repaired area. Also, I don't think your pictures do justice to the superb walnut top. You need to show buyers why your bass is worth significantly more than the other two currently for sale.
Another eBay tactic that works for some is to start the bid much lower with a reserve set. You can draw some people in and make them want the guitar more by letting them bid it up from $1. Setting the reserve can protect you from having to sell below what you want. This would get you a picture of what the interest level really is for your bass. If the bid ends at $1350, maybe you can work something out with the high bidder. If it ends at $850, you'll know that the $1500 you're looking for is not likely to happen, at least not right now.
Finally, you have virtually no feedback. It is hard to sell big ticket items unless you have more of a rating, particularly as a seller. Ideally, you would sell a couple dozen $10 items to build yourself some feedback and then come back to sell your bass.
These are just my opinions. Please give them some consideration and then think about it for yourself.